Blast hole blasting plugging device

Abstract

The utility model provides a blasthole blasting plugging device, and relates to the technical field of blasting plugging. An expansion assembly used for expanding the sealing gasket is arranged on the mounting base, and the structure can be inserted into a shot hole dug in advance according to the actual situation; the device can adapt to shot holes of different sizes, the adaptation capacity of the device is improved, and a sealed space is provided for explosives. The inlet / outlet formed in the mounting frame is used for extending the lead of the explosive out of the shot hole, so that the lead is prevented from being blocked by a blocking substance and cannot smoothly enter and exit from the shot hole; or the lead is damaged and fractured in the plugging process; and the formed injection port is convenient for injecting a plugging substance into a space between the sealing gasket and the explosive, so that the situation that the space in the shot hole is not compact and the blasting capacity of the explosive is influenced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting and plugging, in particular to a blasting and plugging device for a blasthole. Background Art

[0002] In underground engineering, mining and stone mining, safe blasting and demolition of hard rocks and other mining projects and municipal construction projects, drilling and blasting is still the most widely used and most effective method. One of the most important factors affecting the effect of drilling and blasting is the blocking of blastholes. Blasthole blocking can prevent the escape of explosive energy and ensure that the explosive energy is used to break rocks as much as possible. Inadequate or loose blocking will directly affect the blasting effect.

[0003] In the prior art, blastholes are plugged with ordinary loess cannon mud. Generally, it is necessary to first put cannon mud smaller than the diameter of the blasthole into the blasthole to contact it with the explosive, and then use a wooden stick to manually tamp the cannon mud to make it contact with the blasthole wall. The volume of the cannon mud remains unchanged, and the cannon mud is squeezed by human or external force to change its shape to achieve the effect of plugging the blasthole; using artificial wooden cannon sticks or quick-drying cement to fill or seal, it is easy to cause materials to fall into the blasthole and affect the sealing effect; and the opening directions of blastholes are various, such as vertically downward, inclined upward or completely vertically upward, which makes traditional sealing technology more difficult to seal such blastholes and extremely inconvenient to construct. Utility Model Content

[0004] The purpose of the utility model is to provide a blast hole blasting plugging device, which can solve the problems raised by the above-mentioned background technology in view of the shortcomings of the prior art.

[0005] The technical solution of the utility model is achieved in this way:

[0006] The utility model provides a blast hole plugging device, comprising a mounting frame and a mounting seat mounted on the mounting frame, wherein an annular sealing pad is sleeved on the mounting seat, and an expansion component for expanding the sealing pad is provided on the mounting seat; an inlet and an outlet and an injection port are provided in the mounting frame along its extending direction.

[0007] In some technical solutions of the utility model, the expansion assembly includes a plurality of sockets, which are arranged around the outer circumferential wall of the mounting seat, and the sockets are rotatably provided with support rods connected to the side walls of the sealing gasket; the sockets are provided with torsion springs connected to the support rods.

[0008] In some technical solutions of the utility model, a plurality of air bags are arranged around the outer edge of the sealing cushion, and any two adjacent air bags abut against each other.

[0009] In some technical solutions of the utility model, a conical guide member is provided on the mounting frame, the bottom of the guide member abuts against the mounting seat, and a plurality of discharge ports connected to the injection port are opened on the outer circumferential wall of the guide member.

[0010] In some technical solutions of the utility model, a mounting hole is opened at the end of the support rod, a push rod is slidably arranged in the mounting hole, a limit spring connected to the mounting hole is sleeved on the push rod, and a top plate is hinged to the push rod.

[0011] In some technical solutions of the utility model, an inflation duct connected to a plurality of air bags is provided on the mounting frame.

[0012] In some technical solutions of the utility model, a plurality of conical protrusions are provided on the side of the top plate in contact with the hole wall.

[0013] Compared with the prior art, the embodiments of the utility model have at least the following advantages or beneficial effects: the provided sealing gasket is a rubber gasket with telescopic ability; an expansion component for expanding the sealing gasket is provided on the mounting seat, and the above structure can be inserted into a pre-dug blasthole according to actual conditions; it can adapt to blastholes of different sizes to improve the adaptability of the device and provide a sealed space for the explosive; and the inlet and outlet opened on the mounting frame are used to extend the lead of the explosive out of the blasthole, so as to avoid the blocking of the lead by the sealing material and prevent it from entering and exiting the blasthole smoothly; or the lead being damaged or broken during the sealing process; the provided injection port facilitates the injection of the blocking material into the space between the sealing gasket and the explosive, so as to avoid the space in the blasthole being loose and affecting the blasting ability of the explosive. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the actual working installation structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;

[0017] Figure 3 This is a schematic diagram of the third perspective structure of the utility model;

[0018] Figure 4 It is a partial cross-sectional structural schematic diagram of the middle support rod and the top rod of the utility model.

[0019] Icons: 1. Blast hole; 2. Explosive; 3. Guide piece; 4. Mounting frame; 5. Inlet and outlet; 6. Injection port; 7. Sealing gasket; 8. Mounting seat; 9. Top plate; 10. Push rod; 11. Support rod; 12. Seat; 13. Airbag; 14. Passage; 15. Discharge port; 16. Limit spring; 17. Torsion spring; 18. Inflation pipe; 19. Conical protrusion. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1

[0023] Please refer to Figure 1-Figure 4 shown.

[0024] The utility model provides a blast hole blasting plugging device, such as Figure 1 , Figure 2As shown, it includes a mounting frame 4 and a mounting seat 8 mounted on the mounting frame 4, a ring-shaped sealing gasket 7 is sleeved on the mounting seat 8, and an expansion component for expanding the sealing gasket 7 is provided on the mounting seat 8; an inlet and outlet 5 and an injection port 6 are opened in the mounting frame 4 along its extension direction. The blasthole 1 plugging device provided in the present technical solution mainly solves the problem that in the prior art, artificial wooden blasting sticks or quick-drying cement are used for filling, which easily causes materials to fall into the blasthole 1 and affect the plugging effect; and the blasthole 1 is opened in various directions, such as vertically downward, inclined upward or completely vertically upward, which makes the traditional plugging technology more difficult to plug such blastholes 1 and the construction is extremely inconvenient; in order to solve the above problems, the present technical solution provides a disc-shaped mounting seat 8, which is made of steel, and an internal threaded hole is opened in the middle of the mounting seat 8, and the mounting frame 4 is a cylindrical steel column, and one end of the mounting frame 4 is opened with an external thread that matches the thread of the internal threaded hole, so that the mounting frame 4 and the mounting seat 8 become a whole; then the annular sealing gasket 7 is sleeved on the outer circumferential wall of the mounting seat 8, and a part of the sealing gasket 7 is embedded in the mounting seat 8 The outer circumferential wall is provided with a receiving groove, and then the sealing gasket 7 is connected to the mounting seat 8 by bolts, and the sealing gasket 7 is a rubber gasket with telescopic ability; an expansion component for expanding the sealing gasket 7 is provided on the mounting seat 8, and the above structure can be inserted into the pre-excavated blasthole 1 according to actual conditions; it can adapt to blastholes 1 of different sizes to improve the adaptability of the equipment and provide a sealed space for the explosive 2; and the inlet and outlet 5 provided on the mounting frame 4 is used to extend the lead of the explosive 2 out of the blasthole 1, so as to avoid the blocking material blocking the lead from smoothly entering and exiting the blasthole 1; or the lead is damaged or broken during the blocking process; the injection port 6 is provided to facilitate the injection of the blocking material into the space between the sealing gasket 7 and the explosive 2, so as to avoid the space in the blasthole 1 from being loose and affecting the blasting ability of the explosive 2.

[0025] Preferably, the injection material is cement or soil with good fluidity.

[0026] The installation steps are: first install the explosive 2 in the blasthole, then pass the lead of the explosive 2 through the mounting frame, then hold the mounting frame 4, align the mounting seat 8 with the blasthole 1 to be blocked, and then forcefully insert the mounting frame 4 into the blasthole 1. At this time, the expansion component connected to the sealing gasket 7 is squeezed and compressed by the inner wall of the blasthole 1 until it matches the inner diameter of the blasthole 1. Then the above structure can be inserted into the blasthole 1. After inserting to a sufficient depth, stop the operation. At this time, the expansion component connected to the sealing gasket 7 applies a reverse force to the sealing gasket 7, thereby abutting the edge of the sealing gasket 7 against the inner wall of the blasthole 1 to seal the blasthole 1.

[0027] In some technical solutions of the utility model, the expansion assembly includes a plurality of clamping seats 12, which are arranged around the outer circumferential wall of the mounting seat 8, and the clamping seats 12 are all provided with a support rod 11 connected to the side wall of the sealing gasket 7 through a pin shaft rotation; the clamping seats 12 are provided with a torsion spring 17 connected to the support rod 11. The clamping seats 12 are embedded in the outer circumferential wall of the mounting seat 8 and are threadedly connected thereto, and the support rod 11 and the sealing gasket 7 are fixedly connected by riveting; then the torsion spring 17 is sleeved on the pin shaft, one end of the torsion spring 17 is connected to the support rod 11, and the other end of the torsion spring 17 is connected to the U-shaped area of ​​the clamping seat 12, so that the support rod 11 can provide a supporting force for the sealing gasket 7 to ensure that the sealing gasket 7 expands outward under the action of at least four support rods 11, and a reverse force is applied to the sealing gasket 7, so that the edge of the sealing gasket 7 is abutted against the inner wall of the blasthole 1, and the blasthole 1 is sealed; it can also adapt to blastholes 1 of different sizes to improve the adaptability of the device and provide a sealed space for the explosive 2.

[0028] Preferably, each support rod 11 is relatively independent and can form a sealing surface in the irregular blasthole 1 that matches the cross section of the blasthole 1 ; thereby expanding the sealing gasket 7 to abut against the inner wall of the blasthole 1 , thereby improving the sealing ability of the structure to the blasthole 1 .

[0029] Preferably, the sealing gasket 7 has good wear resistance and explosion-proof capability.

[0030] In some technical solutions of the utility model, a plurality of airbags 13 are arranged around the outer edge of the sealing pad 7, and any two adjacent airbags 13 abut against each other. The airbags 13 have good elasticity, wear resistance and explosion-proof ability; they can be used for a long time; in the initial state, the airbags 13 are in an uninflated state; when the sealing pad 7 expands outwards to abut against the inner wall of the blasthole 1 under the action of at least four struts 11, the operator can inject gas into the airbags 13 through a small inflation device, so that the airbags 13 abut against the inner wall of the blasthole 1, thereby sealing the blasthole 1 together with the sealing pad 7, improving the blocking ability of the structure to the blasthole 1, and preventing the blocking material from flowing out from the gap between the sealing pad 7 and the inner wall of the blasthole 1.

[0031] In some technical solutions of the utility model, the mounting frame 4 is provided with an inflation pipe 18 connected to the multiple airbags 13, and the inflation pipe 18 is provided with an inflation nozzle, so that the operator can inject gas into the airbag 13 to inflate the multiple airbags 13 at the same time.

[0032] In some technical solutions of the utility model, a conical guide member 3 is provided on the mounting frame 4, the bottom of the guide member 3 is in contact with the mounting seat 8, a plurality of discharge ports 15 connected with the injection port 6 are provided on the outer circumferential wall of the guide member 3, and the discharge ports 15 surround the outer circumferential wall of the guide member 3, and the plugging material can be introduced into the blasthole 1 from different directions, thereby improving the plugging effect of the plugging material on the blasthole 1; and a channel 14 connected with the inlet and outlet 5 is provided on the guide member 3. The conical guide member 3 can ensure that when the plugging material enters the space between the sealing pad 7 and the explosive 2, the bonding strength between the plugging material and the mounting seat 8 is improved, and the space in the blasthole 1 is prevented from being loose, which affects the blasting ability of the explosive 2.

[0033] In some technical solutions of the utility model, a mounting hole is provided at the end of the support rod 11, a push rod 10 is slidably provided in the mounting hole, a limit spring 16 connected to the mounting hole is sleeved on the push rod 10, and a top plate 9 is hingedly connected to the push rod 10. The push rod 10 slidably arranged on the support rod 11 can expand outwards under the action of the sealing gasket 7 by at least four support rods 11; after adapting to the cross section of the blasthole 1, the top plate 9 located on the push rod 10 is used to improve the stability of the structure in the blasthole 1, so as to prevent the device from slipping or shaking from the blasthole 1, and improve the adaptability of the device.

[0034] In some technical schemes of the utility model, a plurality of conical protrusions 19 are provided on the side where the top plate 9 contacts the hole wall. The conical protrusions can increase the friction between the top plate 9 and the inner wall of the blast hole 1. Under the action of the limit spring 16, the conical protrusions can be partially embedded in the inner wall of the blast hole 1.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A blast hole blasting plugging device, characterized in that: It comprises a mounting frame and a mounting seat mounted on the mounting frame, wherein the mounting seat is sleeved with an annular sealing gasket, and the mounting seat is provided with an expansion component for expanding the sealing gasket; an inlet and an outlet and an injection port are opened in the mounting frame along its extension direction.

2. A blast hole blasting plugging device according to claim 1, characterized in that: The expansion assembly includes a plurality of clamping seats, which are arranged around the outer circumferential wall of the mounting seat. The clamping seats are all rotatably provided with a support rod connected to the side wall of the sealing gasket; and the clamping seats are provided with a torsion spring connected to the support rod.

3. A blast hole blasting plugging device according to claim 1 or 2, characterized in that: A plurality of air bags are arranged around the outer edge of the sealing pad, and any two adjacent air bags abut against each other.

4. A blast hole blasting plugging device according to claim 1, characterized in that: The mounting frame is provided with a conical flow guide, the bottom of which is in contact with the mounting seat, and the outer circumferential wall of the flow guide is provided with a plurality of discharge ports which are connected with the injection port.

5. A blast hole blasting plugging device according to claim 2, characterized in that: The end of the support rod is provided with a mounting hole, a push rod is slidably arranged in the mounting hole, a limit spring connected to the mounting hole is sleeved on the push rod, and a top plate is hingedly connected to the push rod.

6. A blast hole blasting plugging device according to claim 3, characterized in that: The mounting frame is provided with an inflation pipe which is in communication with the plurality of air bags.

7. A blast hole blasting plugging device according to claim 5, characterized in that: A plurality of cone-shaped protrusions are arranged on one side of the top plate in contact with the hole wall.

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